Foldable supporting frame for screens



March 13, 1928.

H NEWMAN FOLDABLE SUPPORTING FRAME FOR SCREENS Filed Nov. 7, 1925 3 Sheets-Sheet 1 HcLc;0 Mama/n March 13, 1928. 1,662,586

' H. NEWMAN FOLDABLE SUPPORTING FRAME FOR SCREENS Filed Nov. 7. 1925 3 Sheets-Sheet 2 1,662,586 H. NEWMAN I FOLDABLE SUPPORTING FRAME FOR SCREENS March 13, 1928.

Filed Nov. 7, 1925 3 S eets-Shee 5,

+ R u i U Q Q 6 A a l b I o 1 T \w m Q i 0 T? O u) g a lo 0% I WNW Inrcfiom fizz/90mm i fiafiaam Patented Mar. 13, 1928.

HUGO NEWMAN, 0] YORK, N. Y.

IOLDABLE SUPPORTING FRAME FOB SCREENS.

Application filed November 7, 1925. sex-lal'lio. 67,657.

This invention relates to supporting frames, and while adapted for "various purposes, is particularly adapted for supporting screens for use with cameras and optical projecting machines, the ob ect of the 1nvention being to provide a portable support for screens which can be collapsed or folded into a small space, whereby it can be easily carried, and which is simple and rigid in construction, light weight and easily adjusted.

A further object of the invention is the rovision of an improved screen support fiaving foldable supporting means adjustable into various positions, thereby to support the screen at different heights.

A further object of the invention is the provision of a screen supporting frame having supporting means adjustable relatively to the frame, thereby to support the frame at different heights, both the frame and the supporting means being foldable whereby the frame may be folded or collapsed into a small space.

In the drawings accompanying and forming a part of this specification, Fig. 1 is a front view of this improved supporting frame with the supporting means or legs in one position to support the frame at a certain height, the dotted lines illustrating the manner in which the frame itself is foldable; Fig. 2 is a side view thereof; Fig. 3 is a perspective view of the supportlng frame with the supporting means or legs so folded as to support the frame at a different height; Fig. 4. is a front view illustrating the adjustment of a art of the supporting means, whereby the fE'ame is supported at a stlll different height; Fig. 5 is a side view of Fig. 4; Fig. 6 is a side view of the supporting frame shown in Fig. 3 with the supporting means folded; Fig. 7 is a side view illus trating the supporting frame and lts supporting means completely folded into a small space; Fig. 8 is a plan or top v1ew of the structure as shown in Fig. 7; Fig. 9 is a perspective view of the sliding sleeve for maintaining the supporting frame in its extended position; and Fig. 10 is a perspective view of one of the corner brackets for hinging the supporting means or legs to the frame.

Similar characters of reference indicate corresponding parts in the several views.

Before explaining in detail the present improvement and mode of operation thereof, I desire to have it understood that the lnvention is not limited to the details of construction and arrangement of parts which are illustrated in the accompanying drawmgs, s nce the invention is capable of other embodiments, and that the phraseolo wh ch I employ is for the purpose of scription and not of limitation.

This improved supporting frame 2 comprises in the preferred form thereof shown herein four bars 3 hinged at the four corners as at 4, these corners being suitably protected by angle brackets 5. In the present instance two of these bars, shown as the top and bottom bars, are also hinged together as at 6, it being understood however, that the side bars could be likewise so hinged if desired. Suitable sliding sleeves are provided for maintaining these top and bottom bars in their extended positions stops 8 being provided to limit the movement of the sleeves. I

From' this it will be apparent that when the sleeves 7 are slid back the top and bottom bars canbe folded inwardly toward each other in the manner shown in dotted lines in Fig. 1,while the so-folded top and bottom bars can by means of the hinges 4.- be folded against the side bars of the frame, thus collapsing the frame into a small compass. This frame is rovided at intervals alon one edge thereo with suitable fastening iiuttons 9 for the attachment of the removable screen.

Hinged adjacent to one corner of the frame at each side thereof is a foldable supporting means in the form of a leg 10 (see Fig. 1 and for this purpose each of these corners of the frame is provided with a suit able corner bracket 11 (see Fig. 10) to which is pivoted as at 12 the folding leg 10. Each of these legs in the form shown, has a length corresponding to the distance between its pivot 12 and the top of the frame (see Fig. 1). When the supporting legs 10 are in the position shown in Fig. 1 suitable swinging braces .13 pivoted to the legs as at 14 are hooked into pins 15 carried by the lower bar 3 thereby to rigidly secure the legs in position to support the frame. Garried by each leg is a pair of feet 16 each pivotally supported as at 17 to a sliding sleeve bracket 18 carried by each leg. This sleeve bracket 18 is adjustable along the leg and may he secured in any of its adjusted positions by a suitable fastening device as a thumb nut 19.

These feet 16 fold upwardly upon the side ed es of the legs (see Fig. 6) and in their follled position are held against the legs by suitable pins and openings 20 and 21, each air of legs being held in extended supportmg position by suitable hinged braces 0r levers 22 pivotally connected to one leg and hook-connected into the other leg, whereby on releasing the hook connection of these levers they may be folded and the feet in turn folded upwardly upon the side edges of the supporting legs. When the legs are opened into the position shown in Fig. 1 and the feet extended as therein illustrated, it will be observed that the supporting screen frame is at one height. However, if it is desired to lower the frame somewhat, it is merely necessary to release the thumb nuts 19 and shift the supporting feet along the legs the distance required, whereby the frame will be lowered. When however, it is desired to support the frame at a height different from that shown in Fi 1 or from that which may be obtained hy adjusting the feet brackets 18 along the legs, it is merely necessary to unhook the levers 13 and swingthelegs upwardly from the position shown in Fig. 1, so 'that they will extend along the length of the side bars 3, whereupon the frame is reversed and the legs will be in the position shown in Fig. 3, so that the frame is supported above the floor a distance coinciding with the height of the feet only. If then it is desired to still further lower the frame, the sliding brackets 18 carrying the feet 16 may be adjusted along the legs 10, thereby lowering the frame still further, as illustrated for instance in Fig. 4. When the legs are folded intothe position shown in Fig. 3 they are maintained in that position by suitable pins 24: in the side bars 3, and corresponding openings in the legs and also by means of spring clamps25 carried at the underside of the sliding brack' ets 18, which clamps are provided with openings for the reception of pins 26 carried by, for instance, the top side bars shown in Fig. 1.

From the foregoing it will be observed that the supporting frame may be supported at two different heights according to whether the legs are in the position shown in Fig. 1 or in Fig. 3, and that the height of the frame may be still further adjusted in the position of Fig. 1 or Fig. 3 by sliding the feet brackets 18 along the legs, so that in the position shown in Fig. 3 the frame may be adjusted toward or from the floor to any position practically corresponding to the length of the feet, and this is also true of the frame when supported in the position shown in Fig. 1. When it is desired to fold or collapse the entire structure, it is merely necessary to first fold the feet 16 upon the legs 10, then release the braces 13 and fold the legs from the position shown in Fig. 1 upon the side bars of the frame, the supporting legs being held in this position as before stated, by means of the pin fastenings 24 and 26. Thereupon upon sliding the sliding sleeves 7 the top and bottom bar of the. frame may be folded inwardly toward each other as shown in dotted lines in Fig. 1, and these top and bottom bars then folded practically simultaneously by means of the hinges 4 upon the side bars whereby the entire structure is collapsed or folded into a small compass as shown for instance in Fig. 7, and being of light weight is readily portable.

The entire structure, due to the manner in which it is constructed, is very rigid and uite capable of supporting various articles or exhibition purposes, and particularly well adapted for supporting a removable screen for use with-a camera and other optical projecting machines, and by means of the folding legs and folding feet the screen or other exhibits may besupported at almost any desired height within I'OllSOllfllllG limits. Thus, I'have provided a lightweight, portable, easily adjusted and folded supporting frame adjustable to various heights in a quick and simple manner, and particularly well adapted for supporting screens.

It is to be understood that by describing in detail herein any particular form, structure or arrangement, it is not intended to limit the invention beyond the terms of the several claims or the requirements of the prior art.

Having thus explained the nature of my said invention and described a way of constructing and using the same, although without attempting to set forth all of the forms in which it may be made, or all of the modes of its use, I claim:

1. An upright reversible projection screen supporting frame comprising a top and bottom and a pair of side bars, and supporting legs at the outside of and hinged nearer to one end than to the other of said side bars, each of said legs having a length at least substantially equal to the distance between said hinge and the farther end of said side bars thereby to support the frame at one height and foldable in the direction of the plane of the frame to support it at a different height on the reversal of the top and bottom of said frame.

2. An upright reversible projection screen supporting frame comprising a top and bottom and a pair of side bars, hinge connected at the four corners of said frame, and supporting legs at the outside of and hinged nearer to one end than to the other of said side bars, said legs having a length at least substantially equal to the distance between its hinge and the farther end of said side bars thereby to support the frame at one height and foldable in the direction of the plane of the frame to support it at a different hei ht on the reversal of the topand bottom of said frame.

3. An upright reversible projection screen supporting frame comprising a top and bottom and a pair of side bars, and supporting legs at the outside of and hinged nearer to one end than to the other of said side bars, each of said legs having a length at least substantially equal to the distance between said hinge and the farther end of said side bars thereby to support the frame at one height and foldable in the direction of the plane of the frame to support it at a difierent height on the reversal of the top and bottom of said frame, said legs having adjustable feet further to regulate the height of the frame.

4. An upright reversible projection screen supporting frame comprisin a top and b'ottom and a pair of side bars, liinge connected at the four corners of said frame, and supporting legs at the outside of and hinged nearer to one end than to the other of sa1d side bars, said legs having a length at least substantially equal to the distance between its hinge and the farther end of said side bars thereby to supportv the frame at one height and foldable in the direction of the plane of the frame to support it at a different height on the reversal of the top and bottom of said frame.

5. A foldable translucent screen support ing frame for o tical projection instruments formed of our bars hinge-connected at the corners, a plurality of the bars located at opposite sides of the frame having a length no greater than the other bars of the frame and each hinged intermedlate its length and foldable toward the center of the frame with the hinged ends facing each other thereby to permit the folding of the frame into a compact structure without the overlapping of such hinged ends.

6. A foldable translucent screen supporting frame for optical projection instruments formed of four bars hinge-connected at the corners, the top and bottom bars having a length no reater than the other bars of the frame an each hinged intermediate its length and foldable toward the center of the frame with the hinged ends facing each other thereby to permit the folding of the frame into a compact structure without the overlapping of such hinged ends.

7 An upright reversible projection screen supporting frame comprising a top and bottom and a pair of side bars, and supporting legs at the outside of and hinged nearer to one end than to the other of said side bars, each of said legs having a length at least substantially equal to the distance between said hinge and the farther end of said side bars thereby to support the frame at one height and foldable in the direction of the plane of the frame to support it at a different height 'on the reversal of the'to and bottom of said frame, a plurality 0 said frame bars also bein hinged intermediate their lengths to permit the compact folding of the frame.

8. An upright reversible projection screen supporting frame comprising a top and bottom and a pair of side bars, hinge-connected at the four corners of said frame, and supporting legs at the outside of and hinged nearer to one end than to the other of said side bars, said legs having a length at least substantially equal to the distance between its hinge and the farther end of said side bars thereby to support the frame at one height and foldable in the direction of the plane of the frame to support it at a different height on the reversal of the to and bottom of said frame, a plurality 0 said frame bars also bein hinged intermediate their lengths to permit the compact folding of the frame.

9. An upright reversible projection screen supporting frame comprising a top and bottom and a pair of side bars hinge-connected at the four corners of said frame-supporting legs at the outside of and hinged nearer to one end than to the other of said side bars, said legs having a length at least substantially equal to the distance between its hinge and the farther end, of said side bars thereby to support the frame at one height and foldable in the direction of the lane of the frame to support it at a diiflirent height on the reversal of the top and bottom of said frame, a plurality of said frame bars also being hinged intermediate their lengths to permit the compact folding of the frame, and adjustable feet connected to said legs further to regulate the height of the frame.

10. A foldable translucent screen supporting frame for o tical projection instruments formed of fdur bars hinge-connected at the corners, a plurality of the bars located at opposite sides of the frame havin a length no greater than the other bars 0 the frame and each hinged intermediate its length and foldable toward the center of the frame with the hinged ends facing each other thereby to permit the foldin of the frame into a compact structure wit out the overlapping of such ends, and adjustable legs carried by a pair of said bars intermediate the lengths of and nearer one end than the other of said bars for varying the height of the frame.

11. A foldable and reversible translucent screen supporting frame for optical projection instruments formed of four bars hingeconnected at the corners, the top and bottom bars having a length no greater than the other bars of the frame and each hinged intermediate its length and foldable toward the center of the frame with the hinged ends facing each other thereby to permit the folding of the frame into a compact structure without the overlappin of such ends, and adjustable legs carried y a pair of said bars intermediate the lengths of and nearer one and than the other of said bars for varyin the height of said frame.

12. A fo dable translucent screen-supporting frame for optical projecting instruments formed of four bars hinge-connected at the corners, opposed bars thereof each hinged intermediate its length to permit a compact folding of the frame, adjustable le s carried by a pair of said bars for varying t e helght of the frame, andiadjustahle eet carried by said legs for further varying the height of the frame.

13. A foldable translucent screen-supporting frame for optical projecting instruments formed of four bars hinge-connected at the corners, opposed bars thereof each hinged intermediate its length to permit a compact folding of the frame, ad ustable legs carried by a pair of said bars for varying the height of the frame on the reversal of such I frame, and adjustable feet carried by said legs for further varying the height of said frame.

14. A foldable translucent screen-supporting frame for optical projecting instruments formed of four bars hinge-connected at the corners, opposed bars thereof each hinged intermediate its length to permit a compact folding of the frame, adjustable legscarricd by a pair of said bars for varying the hei ht of the frame, and adjustable feet carrie by said le s for further varying the height of the finale and adjustable along the length of said legs.

15. A foldable translucent screen-supporting frame for optical projecting instruments formedof four bars hingeconnected at the corners, opposed bars thereof each hinged intermediate its length to permit a compact folding of the frame, adjustable le 5 carried by a pair of said bars for varying t e height of the frame on the reversal of such frame, and adjustable feet carried by said legs for further varying the height of said frame and adjustable vertically along the length of said legs.

16. A reversible supporting frame comprising four bars hin e-c0n'nected at their corners to form a fol able skeleton frame, a pluralit of said bars being hinged intermediate tieir ends thereby permitting the frame to be folded into a compact structure, a pair of legs hinged to a pair of said bars between the ends thereof for supporting the frame at one height and foldable along said bars to support the frame at another height on the reversal of said frame, and feet adjustable lengthwise of said su porting legs for further increasing the height of said frame, said legs having a length substantially coinciding with the height of the frame.

17. A supporting frame comprising a series of bars hinge-connected at their corners, opposed bars thereof being hinged intermediate their ends whereby the frame may be folded into a compact structure, a pair of supporting legs carried by apair of said framebars and shiftable into different positions to support the frame at different heights, and feet carried by said supporting legs and adjustable len thwise of said legs for further varyin the l ieight of said frame.

Signed at 1822 ark Row Building, city, county and State of New York, this 31st day of October, 1925.

HUGO NEWMAN. 

